Sawmill set-works.



P. MICHEL, PILS. SAWMILL SET WORKS. APPLICATION FILED JAN. 18, 1910.

1 ,01 6 ,759, Patented Feb. 6, 1912.

4 SHEETS-SHBET 1.

'INVENTOR PFIUL. MpenzLfils WWMM COLUMBIA PLANOGRAPH C0.,WASmNuTON. D.c.

P. MICHEL, FILS. SAWMILL SET WORKS.

APPLICATION FILED JAN. 18, 1910.

1,016,759. Patented Feb. 6,1912.

4 SHEETS-SHEET 2.

INVENTOR PHUL. MIeHE Lfils W: W 77. I v #H-orney COLUMBIA PLANodRAPH60-. WASHINGTON. n; c.

P. MICHEL, FILS. SAWMILL SET WORKS.

APPLICATION FILED JAN. 13, 1910.

Patented Feb. 6, 1912.

COLUMBIA PLANOGRAPH 110-, WASHINGTON. D. c.

P. MICHEL, FILS. SAWMILL SET WORKS APPLICATION FILED JAN. 1a. 1910.

Patented Feb. 6, 1912.

Pnu L MIC/ISL COLUMBIA PLANOGRAPH 60., WASHINGTON, n. c.

UNITED STATES PATENT OFFICE.

PAUL MICHEL, FILS, 0F TROYES, FRANCE.

SAWMILL SET-WORKS.

To all whom it may concern Be it known that I, PAUL MICHEL, F ils, acitizen of the Republic of France, residing at Troyes, Aube, France,(whose post-office address is 180 Faubourg Croncels, Troyes, Aube, France,) manufacturer, have invented an Improvement in SawmillSet-WVorks, of Which the following is a specification.

The present invention relates to setworks for saw-mill carriages, andthe particular object of my invention is to provide an improvedmotor-driven set-works adapted to be operatively connected to the usualfeed screws of the set-works on a traveling-carriage after the latterhas reached a predetermined position.

My improved set-works is designed to secure the following advantages (1)The width of the out may be determined in advance and the settingmechanism is automatically halted as soon as the log has been advancedthe predetermined distance for the succeeding cut. (2) After the cuttingof the log has been completed, the log supporting knees are returned totheir original position by the setting mechanism which is automaticallyhalted as soon as this position is reached. An interlocking system forthe various operating levers is provided which prevents their operationin the wrong sequence and thus insures the mechanism against erroneousmanipulation.

In the accompanying drawings Figures 1 and 2 are respectively brokenplan and side elevation showing my improved set-worksapplied to asaw-mill carriage of suitable character; Fig. 3 is a longitudinalsection on the line 33, Fig. 4 drawn to a larger scale, through theset-mechanism and showing its relation to the log carriage; Fig. 4 is aplan of the set works, showing in dotted lines its relation to thecarriage; Figs. 5 and 6 are side elevations of the controlling leversfor the set-works, the parts being, in Fig. 5, in the position taken atthe halt of the carriage and during the advance of the log to positionfor the next out; while in Fig. 6, they are in the position assumedduring the travel of the carriage for the cut, the set works mechanismbeing halted.

The present invention is not concerned with the carriage construction7901' 86, except in so far as it possesses the necessary means forconnecting the usual feed screws a for the log-holding knees a to myimproved motor-driven setting mechanism, Thus, in

Specification of Letters Patent.

Application filed January 18, 1910.

Patented Feb. 6, 1912. Serial No. 538,672.

Figs. 1 and 2, I have represented the usual wheeled carriage A, whichtravels in the customary manner upon the guide tracks a arranged beneaththe same. The usual series of log-holding knees a work in the custom arymanner transversely of the carriage, the feed motion being impartedthereto by the screws a which are interconnected and simultaneouslyrotated through sprockets a and chains (E. In the old type of carriage,the feed is effected by a hand wheel spindle a, mounted on the carriage,and connected through bevel gears, with the spindle of one of thesprockets a Vithout altering this old method feed, I now propose tosupple ment it by a power driven feed mechanism, adapted to beoperatively connected to said sprocket and chain mechanism when thecarriage has reached a predetermined point in its travel. As shown inFig. 2, I arrange in stationary position at one end of the carriagerunway, and beneath the carriage when the latter is in its end position,a pinion 0 adapted to gear with a pinion a operatively connected withthe spindle of one of the sprockets a Obviously, upon the rotation ofthis pinion 0 the motion which it imparts to the cooperating pinion a onthe carriage is transmitted through the chains a to the series ofsprockets a for the feed screws a and the knees are advanced a distancedetermined by the rotation of the pinion 0 In the particular arrangementillustrated, which may be variously modified without departing from myinvention, I have shown the pinion 0 mounted on the feather c lying toone side of the end of frame If in which the spindle Z) is journaled.This spindle b is driven by a sprocket 6 mounted freely upon the shaftbut normally engaging the clutch member (Z keyed to said shaft. Thesprocket c is connected by the chain c to the sprocket 6 mounted uponthe shaft 6 of the pulleys e e e of which only 6 is fast upon the shaft,6 and 6 receiving oppositely running belts, which may be shifted uponthe pulley e by the shifter a, controlled by the lever 6 through theflexible connection 6 In order to obtain an automatic stop of the feedmechanism and thus to determine with precision the width of successivecuts I provide an automatic unclutching device which cooperates with asimultaneously acting brake mechanism to halt the feed after the samehas proceeded a predetermined inthe latter.

terval. This I accomplish through coop.- erating tappet nuts 6 and 9 Thetappet nut 79 is threaded upon the screwed end 6 of the shaft 6, and isprovided with a depending leg perforated to ride freely upon the screwshaft 9. The tappet g is reversely arranged, that is, it is threadedupon the screw shaft 6. The tappet g is reupwardly extending legperforated to pass freely over the screwed end of the shaft 6.Obviously, upon the rotation of the shaft 9, the tappet g is movedlongitudinally thereon since it is prevented from rotation by itsengagement with the shaft 6. Consequently, if by means of the bevelgears g and 9 mounted at the ends of the shaft 1) and the spindle g ofthe handle 9 respectively, the tappet g is moved a predetermineddistance determined by the gage g and pointer g beneath the handle 9*,the tappet b on the spindle b can move longitudinally thereon only thispredetermined distance to the tappet 9 before engaging Upon engaging thetappet g the tappet is necessarily halted, and the continued rotation ofthe spindle 1) causes the latter to be longitudinally displaced in thedirection of the arrow 00 (Fig. 3). In-

asmuch as the sprocket e is held in stationary position with relation tothe spindle Z) by the fixed fork 5 this longitudinal displacement of theshaft separates the clutch member d from the sprocket 6 and the lattertherefore rotates as an idler upon the shaft 6.

Simultaneously with the unclutching of the clutch member at and thesprocket e, a braking device isbrought into operation to halt the shaft5. In the form shown this 40 braking device comprises disks (Z mount-edupon the hub, of the clutch d, and cooperating disks d mounted withinthe bell (F, the latter being slidably mounted upon a feather (Z on thehub d of the frame 6 in. which the shaft Z) is journaled. A spring dpresses the bell 0Z toward the clutch I), thus cushioning and preventinga too sudden action of the braking device. The carriage is now ready tobe advanced to the saw, the log having been fed forward transversely ofthe carriage the predetermined distance to secure the desired thicknessof the nextijicut. Before advancing the carriage, however, it isadvisable to move the pinion 0 out of engagement with the cooperatingpinion a on the carriage, and I accomplish this by means of a rod 0extending length- .i ,wise through the shaft Z), which is made hollowfor' this purpose. This rod is at- 60 tached at one end to a cap 0 fastwith the pinion 0 and at the other end carries a roller 0 over whichpasses a band 0 secured at one end to the adjacent end of the frame Ifand attached at its other end to the rock 6 lever 0 the position ofwhich is determined through the other arm 0 and connecting rod 0 by thecontrol lever 0 As soon as this lever 0 is moved to the positionindicated in full lines (Fig. 3), the rod 0 is longitudinally displaced,thus throwing the pinion 0 out of engagement with the pinion a.

After the carriage has started on its advance for the cutting stroke,the handle 9 is rotated to set the tappet nut g in position for the nexttransverse feed of the log. This separates the tappet therefrom and theshaft 6 is returned by the spring 01 which presses against the clutchmember 01, and the latter is again brought into engagement with theratchet e. The pinion c is still held in the extended positionillustrated in Fig. 3, by the rod 0 so that upon the return of thecarriage to its initial position, the pinion a is out of gear therewith,until upon the shifting of the lever 0 the spring 0 returns the pinion 0into engagement with the pinion a To insure the proper positioning ofthe carriage with relation to-the set device above described, thecarriage is provided with shoulders a at one end, (Figs. 1 and 4)between which stop lug h, mounted upon the spindle h is pressed by thespring 71. This lug may be disengaged by means of the treadle 72. andconnecting rod h pivoted to the lug.

After a log has been completely out and it is desired to return theknees to position to receive afresh log, the tappets having been movedto the right hand end of the shafts b and g, it is sufficient to merelyshift the belt-lever 6 so as to rotate the shaft 1) in the oppositedirection to that of the feed, whereupon the tappet b is traveled backto its original position, coming into engagement with the fork fswinging on the pivot P, which bears against the collar 12 and serves todeclutch the shaft from the sprocket sleeve 6 in the manner hereinbeforedescribed. The tappet 9 may be brought back into engagement with thetappet Z2 by rotating the handle g in the direction opposite to that inwhich it is turned to set the feed.

While it is not essential to the other features mentioned, I prefer as amatter of safety, to provide an interlocking engagement of the variouscontrolling levers so that it is not possible to operate them in thewrong sequence. As previously stated, the lever 0 controls the positionof the pinion c with relation to the pinion a on the carriage, while thelever 0 controls the belt shifter. In addition to these levers, theusual lever 2' is provided to control the carriage traveling mechanism.Subject to the motion of the lever 2', I provide a lock bar 2' which isengaged by the shank of the treadle it on the one hand, and by thecarriage-advancing lever 2' on the other hand. This bar a must be freedof the treadle it by depressing the latter before the lever 2' may beshifted to operative position and the carriage-advancing mechanismstarted. The depression of the treadle, as QbOXQ eX- plained, rocks thelug it out of the offset a of the carriage, and the latter is thusfreed. When the lever 2' is shifted into position to set thecarriage-advancing mechanism in operation, the tongue 2' on one end ofthe rod 2', enters a perforation 2' in the lever 0 and thus locks it inposition such that the pinion c is out of engagement with the carriagepinion a when the latter returns to its usual position. Thebelt-shifting lever e is provided with an arm 6 reaching across to andengaging the lever 0 so that it is impossible to shift the lever 6 untilthe rod 91 has been withdrawn by the return of the lever i which stopsthe carriage-actuating mechanism when the carriage is again in positionfor the adjustment of the log knees for a fresh cut.

Obviously my invention is not limited to the particular arrangementshown, but may be embodied in various modifications which do not departtherefrom, and I do not limit myself to the precise structure shown.

I claim as my invention:

1. A feed device for a machine of the character described, comprising alongitudi nally displaceable shaft having a threaded portion, a nutthereon held against rotation but free to travel on said spindle duringthe rotation of the latter, a tappet arranged in the path of said nut, aclutch on said shaft and means in connection therewith for driving thelatter, means in connection with the longitudinal displacement of saidshaft following the impingement of said nut against said tappet fordisengaging the clutch members and thereby stopping the drive of saidshaft, in combination with means for connecting said shaft to the feedgearing for the transversely movable work supports on a travelingcarriage when the latter is in predetermined position.

2. A feed device for a machine of the character described, comprising alongitudinally displaceable shaft having a threaded portion, a nutthereon held against rotation but free to travel on said spindle duringthe rotation of the latter, a tappet arranged in the path of said nut, aclutch on said shaft and means in connection therewith for driving thelatter, means in connection with the longitudinal displacement of saidshaft following the impingement of said nut against said tappet fordisengaging the clutch members and thereby stopping the drive of saidshaft, in combination with means for connecting said shaft to the feedgearing for the transversely movable work supports on a travelingcarriage when the latter is in predetermined position, together withmeans for holding said connecting means in inoperative position.

3. A feed device for a machine of the character described, comprising alongitudinally displaceable shaft having a threaded portion, a nutthereon held against rotation but free to travel on said spindle duringthe rotation of the latter, atappet arranged in the path of said nut, aclutch on said shaft and means in connection therewith for driving thelatter, means in connection with the longitudinal displacement of saidshaft following the impingement of said nut against said tappet fordisengaging the clutch members and thereby stopping the drive of saidshaft, a braking device automatically brought into action upon theopening of the clutch to stop the rotation of the shaft, in combinationwith means for connecting said shaft to the feed gearing for thetransversely movable work supports on a traveling carriage when thelatter is in predetermined position.

l. A feed device for a machine of the character described, comprising alongitudinally displaceable shaft having a threaded portion, a nutthereon held against rotation but free to travel on said spindle duringthe rotation of the latter, a tappet arranged in the path of said nut, aclutch on said shaft and means in connection therewith for driving thelatter, means in connection with the longitudinal displacement of saidshaft following the impingement of said nut against said tappet fordisengaging the clutch members and thereby stopping the drive of saidshaft, in combination with means for connecting said shaft to the feedgearing for the transversely movable work supports on a travelingcarriage when the latter is in predetermined posit-ion, together withmeans to insure the positioning of said carriage in the operativelycoordinated relation of said feed gearing and connecting means.

5. A feed device for a machine of the character described, comprising alongitudinally displaceable hollow shaft having a threaded portion, anut thereon held against rotation but free to travel on said spindleduring the rotation of the latter, a tappet arranged in the path of saidnut, a clutch on said shaft and means in connection therewith for dryingthe latter, means in connection with the longitudinal displacement ofsaid shaft following the impingement of said nut against said tappet fordisengaging the clutch members and thereby stopping the drive of saidshaft, in combination with a pinion splined on said shaft and adapted toengage a cooperating pinion of the feed gearing for the transverselymovable work supports on a traveling carriage, together with a rodpassing longitudinally through sald shaft and means in connection withsaid rod for controlling the position of said pinion on the shaft, forthe purpose specified.

61A feed device for a machine of the character described, comprising alongitudinally displaceable shaft having a threaded portion, a nutthereon held against rotation but free to travel on said spindle duringthe rotation of the latter, a tappet arranged in the path of said nut,means for reversibly rotating said shaft, said means comprising a clutchmember freely rotating on said shaft, a reversible belt drive therefor,and a cooperating clutch member fast on said shaftadapted to bedisengaged from the positively driven clutch member on the longitudinaldisplacement of said shaft following the impingement of said nut againstsaid tappet, in combination with means for connecting said shaft to thefeed gearing for the transversely movable work supports on a travelingcarriage when the latter is in predetermined position. v

7. A feed device for a machine of the character described, comprising alongitudinally displaceable shaft having a threaded portion, a nutthereon held against rotation but free to travel on said spindle duringthe rotation of the latter, a tappet arranged in the path of said nut,means for reversibly rotating said shaft, said means comprising a clutchmember freely rotating on said shaft, a reversible belt drive therefor,and a cooperating clutch member fast on said shaft adaptedto bedisengaged from the positively driven clutch member on the longitudinaldisplacementiof said shaft following the impingement ofsaid' nut againstsaid tappet, in combination with a pinion splined on said shaft andadapted to engage a cooperating pinion of the feed gearing for thetransversely movable work support-s on a traveling carriage of thecharacter described, together with a rod passing longitudinally throughsaid shaft and means in connection with said rod for controlling theposition of said pinion on the shaft, for the purpose specified.

8. A feed device for a machine of the character described, comprising alongitudinally displaceable shaft having a threaded port-ion, a nutthereon held against rotation but free to travel on said spindle duringthe rotation of the latter, a tap-pet arranged in the path of said nut,means for reversibly rotating said shaft, said means comprising a clutchmember freely rotating on said shaft, a reversible belt drive therefor,and a cooperating clutch member fast on said shaft for shifting said rodand the belt drive for the clutch.

9. A feed device for a machine of the character described, comprising alongitudinally displaeeable shaft having a threaded portion, a nutthereon held against rotation but free to travel on said spindle duringthe rotation of the latter, a tappet arranged in the path of said nut,means for reversibly rotating said shaft, said means comprising a clutchmember freely rotating on said shaft, a reversible belt drive therefor,and a cooperating clutch member fast 011 said shaft adapted to bedisengaged from the positively driven clutch member on the longitudinaldisplacement of said shaft following the impingement of said nut againstsaid tappet, in combination with a pinion splined on said shaft andadapted to engage a cooperating pinion of the feed gearing for thetransversely movable work supports on a traveling carriage of thecharacter described, together with a rod passing longitudinally throughsaid shaft and cooperating levers for shifting said rod and the beltdrive for the clutch, together with a lever for operating the carriagetraveling mechanism and means for locking one set of levers while theother set is free, substantially as described.

In testimony whereof I have signed my name to this specification, in thepresence of two subscribing witnesses.

PAUL MICHEL, FILs.

Vitnesses DEAN M. MAsoN, JAo Uns LEJEUNE.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

